{"author_url":"https://blog.hatena.ne.jp/utgwkk/","blog_url":"https://blog.utgw.net/","width":"100%","title":"input type=\"text\" \u306bpattern\u3092\u6307\u5b9a\u3057\u3066\u3082required\u3067\u306a\u3044\u306a\u3089\u7a7a\u306e\u3068\u304d\u691c\u8a3c\u6210\u529f\u3059\u308b","image_url":null,"url":"https://blog.utgw.net/entry/2022/07/20/130959","description":"CSS\u3067\u691c\u8a3c\u6210\u529f\u3057\u305f\u3068\u304d\u306binput\u306e\u80cc\u666f\u8272\u3092\u5909\u3048\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002 .input-20220720:valid { background-color: green; } <form action=\"#\"> <input type=\"text\" class=\"input-20220720\" pattern=\"[a-zA-Z0-9]{4}\" maxlength=\"4\"> </form> <form action=\"#\"> <input type=\"text\" class=\"input-20220720\" required pattern=\"[a-zA-Z0-9]{4}\" maxlength=\"\u2026","author_name":"utgwkk","published":"2022-07-20 13:09:59","version":"1.0","height":"190","blog_title":"\u79c1\u304c\u6b4c\u5ddd\u3067\u3059","type":"rich","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.utgw.net%2Fentry%2F2022%2F07%2F20%2F130959\" title=\"input type=&quot;text&quot; \u306bpattern\u3092\u6307\u5b9a\u3057\u3066\u3082required\u3067\u306a\u3044\u306a\u3089\u7a7a\u306e\u3068\u304d\u691c\u8a3c\u6210\u529f\u3059\u308b - \u79c1\u304c\u6b4c\u5ddd\u3067\u3059\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","categories":["\u6280\u8853"]}